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DYS-702 5.8GHz 32-Ch Diversity 7" LCD FPV Monitor Receiver with Folding Sunshade

DYS-702 5.8GHz 32-Ch Diversity 7" LCD FPV Monitor Receiver with Folding Sunshade

£119.90
Price

In Stock

Brand: 
DYS multicopter parts
AttachmentSize
DYS-702 Manual147.77 KB
SKU:
FPV-MONITOR-DYS-702

The DYS-702 is our choice FPV monitor and probably the best value monitor on the market at the moment. It combines a fantastic 7-inch LCD display with an equally good inbuilt 32-channel 5.8GHz diversity receiver to make one great package.

The display is one of the best with seen in an FPV monitor. It outputs a high-resolution picture that shows a good level of detail. It also produces a vivid image with accurate colours and a good level of contrast.

Some monitors are unusable in sunlight, which is impractical for an FPV monitor - not this one. Its 450cd/m² LED backlit screen is the brightest we’ve used and can be seen easily on the brightest of days. It even comes with a removable sunshade that will help keep unwanted light off the screen to eliminate glare, while also giving it a professional look. The sunshade also folds away to protect the screen when you’re done using it.

Most importantly for FPV users, if the input signal gets weak it does not switch to the dreaded "blue screen" - a problem with many non-FPV monitors whereby if signal strength dips, even for a split second the screen turns blue! When this monitor suffers from a signal interruption it just shows static and hence this feature allows you to fly much further without losing the image and potentially your drone!

The screen alone makes this a standout monitor, but the inclusion of a 5.8GHz diversity receiver is a real bonus. A diversity receiver is essentially two receivers all in one. In essence, this allows you two mix and match antennas for a solid video link. So it might be that you select a circular polarised omnidirectional antenna, which will provide good reception in all directions in the near field, and a directional high gain patch antenna for long distance flights. The diversity receiver is clever in that it will seamlessly switch between the receiver with the strongest signal. The receiver operates over 4 bands and boasts 32 channels making it compatible with most FPV gear, including ImmersionRC, Fat shark, Boscam amongst others.

The DYS-702 has a 7-12 volt operational voltage so you can use a 2 or 3 cell LiPo battery to power it in the field. Its battery compartment will house a 2S LiPo for a neat, wire free solution. If you want to use 3S LiPo it comes with a JST power lead, which plugs into an external power port.

Finally, the monitor has an AV input port and an AV output port. This means that you can use it as just a monitor and feed it with a signal from a different receiver, or you can use the 702’s inbuilt diversity receiver and output the signal to another display, for instance FPV goggles.

For the best FPV experience we recommend fixing the monitor to your transmitter using our carbon fibre monitor mount sold separately.

Channels:

  • Band A: 5865,5845,5825,5805,5785,5765,5745,5725
  • Band B: 5733,5725,5771,5790,5809,5828,5847,5866
  • Band E: 5705,5685,5665,5645,5885,5905,5925,5945
  • Band F: 5740,5760,5780,5800,5820,5840,5860,5880

Features:

  • 7.0 inch Display with 450cd/m Brightness
  • Foldable Screen Shroud for Outdoor Use
  • Anti-Glare Surface Treatment 
  • 500:1 Contrast Ratio
  • Built-in Diversity Receiver with Automatic Antenna Switching
  • Operates Over 4 Bands and 32 Channels
  • Not Affected by 2.4GHz R/C Radios
  • No "Blue Screen" Due to Weak Signal Input

We now sell the DYS-702 with an in built DVR to record your flights onto a SD card; it's called the DYS 700D.

  • Panel Size: 7.0 inch
  • Panel Type: TFT LCD
  • Resolution: 800x480 pixels
  • Display Ratio: 16:9
  • Brightness: 450cd/m²
  • Contrast Ratio: 500:1
  • Backlight: LED
  • Viewing Angle: 140/120degree (Horizontal/Vertical)
  • Working Voltage: DC 7.6 ~ 12.6V (2s-3s compatible)
  • Power Consumption: ≤ 8W
  • Supported Video Format: NTSC/PAL (manually selectable in menu)
  • Antenna Connection: SMA (center hole)
  • Receiver: Built-in 5.8Ghz dual diversity receiver
  • Ports: 1CH A/V output and 1CH A/V input
  • Mounting: 1/4"- 20 thread (tripod) and VESA mounting socket (75mm) 
  • Working Temperature: -10°C ~ +65°C
  • Weight: 503g
  • Dimensions: 180mm x 133mm x 28mm

Included:

  • 7.0 inch Monitor
  • Outdoor Screen Shroud
  • JST to 3.5mm DC Power Cable
  • RCA Audio / Video Cable
  • User Manual

FPV equipment and advice: If you like multicopters, you are more than likely going to like FPV flying. Most people dream of piloting an aircraft for real, well with an FPV setup you can actually place yourself in the cockpit (well sort off)! FPV stands for First Person View – it’s achieved by mounting a camera on your multirotor and broadcasting a live video feed so that the pilot on the ground sees the flight from the aircraft’s view. 

When it comes to selecting FPV TX / RX equipment you will soon discover that there is a huge selection to choose from. However, a word of warning; not all of it will be legal to operate in the UK. Only certain frequencies are freely available to use and furthermore there are constraints on transmission power levels. 2.4Ghz video equipment is legal, however most radio control equipment utilizes the 2.4Ghz spectrum and consequently when used together there will be interference. This leaves only one credible option, the 5.8Ghz band, which incidentally is a very clean band due to the low amount of other users. The drawback is its poor penetrative ability; buildings and even trees can have an adverse effect on the signal strength. This means it’s advisable to use it for line of sight (LOS) flying only.

This brings us onto power constraints. In the UK, you are limited 10mw of transmission power on 2.4Ghz and 25mw on 5.8Ghz. Contrary to popular belief, an amateur radio license (HAM) does not exempt you from the power restrictions for airborne use. While you may have seen transmitters with higher power ratings - 200mw is popular, these are not legal to operate in the UK for FPV. You might be wondering why the power level matters anyway? Well, more power gives greater range. However, it’s not that simple; to double the range you have to quadruple the power! Therefore simply buying a very powerful TX to achieve great range is not an especially effective or legal solution.

The best way to achieve greater range is by selecting appropriate antennas. There are a variety of different types; each designed to work slightly differently, for different purposes. Therefore, in order to make the best selection you need to understand how they work.

Most transmitters / receivers come with an omnidirectional, 2.14dbi gain “Rubber Duck” antenna as standard. The key terms to understand here are omnidirectional and gain. Omnidirectional refers to the radiation (or received) pattern of the antenna. Gain on the other hand refers to the antenna’s directivity. To better understand, you can make an analogy with different light sources. If you have a light bulb out in the open, the light will go in every direction, but it will not go very far (this is your omnidirectional low gain antenna). If you take that light bulb and put a reflector behind it, the light will be directed more brightly and much further but in a narrower beam (this like a directional high gain antenna). Radio power works in the same way, you will never get "extra" power from an antenna, but you can direct the radio power where you need it, and it will be many times stronger.

The best thing about increasing the gain of your receiver antenna is the effect it has on your range. For example, if you were to replace your standard 2.14dbi omni antenna with a 17dbi helical antenna you increased your receiver dbi by ~15dbi. 15dbi divided by 3 gives us 5 times the range you think. Well no, 3dbi gain doubles your distance; another 3dbi on top doubles your new distance. So by increasing the gain from 2dbi to 17dbi actually increases the range by 32x its original distance! All this without increasing the TX power at all!

Because high gain directional antennas work by taking power away from some areas, and focusing it in other directions, they need to be aimed,  otherwise your multirotor will fly into weak spots and your video link will be lost. Remember that the higher the gain, the narrower the beam of radiation and hence the greater need for precise aiming.

If the multirotor is far away from you, aiming will be easy, as its position in the sky will change slowly. If it’s close, it is much harder to keep the antenna aimed. The solution is a diversity system. A diversity receiver has multiple video antennas and automatically chooses which antenna is receiving the best signal at any moment. This allows you to have the best of both worlds; you can have a long range directional antenna that you aim when your multirotor is far away (for example a high gain helical antenna), and also a omnidirectional antenna that only works close, but does not need to be aimed for instance a low gain skew planar wheel antenna).

If it are still stuck, then watch this video - it's an excellent layperson's guide to understanding the relationship between range and gain.

If you want a more in detailed explanation watch this video - it will help you understand polarization and also select an appropriate antenna.

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